Very interesting read (Comparisons between 2.0 and 2.4 DOHC)
Posted: Fri Feb 17, 2012 3:23 pm
by WidebodyWoody
This has overlayed dyno results of a 2.0 and 2.4 in both the torque and HP ranges, same gear. It shows spool times, and also has overlays of time not just torque so it shows duration of spool up as well. Very useful.
hmmm.. makes me hope i need to rebuild my 2 litre in the near future....
Posted: Sun Mar 11, 2012 6:52 pm
by enthuzed
There is no replacement for displacement! And a psychotic snail helps even more!
Posted: Sun Mar 11, 2012 10:24 pm
by WidebodyWoody
Well I would argue that the replacement for 0.2 litres of displacement is the extra cam and the bigger and better flowing ports. :beer
Posted: Tue Mar 13, 2012 10:51 pm
by Sargeant_Khan
enthuzed wrote:There is no replacement for displacement! And a psychotic snail helps even more!
A supercharger is a perfect replacement for displacement. Essentially that's exactly what it does.
Posted: Tue Mar 13, 2012 11:14 pm
by enthuzed
It was a throw away comment guys.
Super and turbo chargers just jam more air into the pump (engine).
Less boost and less strain on the engine for the same result makes sense to me.
Posted: Wed Mar 14, 2012 5:00 am
by fugazi
Sargeant_Khan wrote:
enthuzed wrote:There is no replacement for displacement! And a psychotic snail helps even more!
A supercharger is a perfect replacement for displacement. Essentially that's exactly what it does.
Well... I see what you mean, but a SS takes a lot of power from the crank too... compared to a turbo that "onley" makes a bit of backpressure for the piston's exh.stroke.
enthuzed wrote:It was a throw away comment guys.
Super and turbo chargers just jam more air into the pump (engine).
Less boost and less strain on the engine for the same result makes sense to me.
Throw away or not... It's true!
A 2litre, 150hp N/A-motor will make ~300hp on 1bar of boost.
A 2,3 litre 200hp N/A-motor would pass 300hp before 0,7bar. With a nicer torque-curve!
And a unopened BMW M60B40 V8 singelturbo and E85, makes 640WHP/818WNm@1,1bar in a Volvo 242 -75... sleeper? Hilarious?
But I guess that's OT and not very interesting... :D
